JPH07277992A - Delayed release administration molded material containing palmitic acid clindamycin - Google Patents
Delayed release administration molded material containing palmitic acid clindamycinInfo
- Publication number
- JPH07277992A JPH07277992A JP7019396A JP1939695A JPH07277992A JP H07277992 A JPH07277992 A JP H07277992A JP 7019396 A JP7019396 A JP 7019396A JP 1939695 A JP1939695 A JP 1939695A JP H07277992 A JPH07277992 A JP H07277992A
- Authority
- JP
- Japan
- Prior art keywords
- clindamycin
- active compound
- palmitate
- clindamycin palmitate
- antibiotic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7042—Compounds having saccharide radicals and heterocyclic rings
- A61K31/7052—Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides
- A61K31/7056—Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing five-membered rings with nitrogen as a ring hetero atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
- A61K9/0024—Solid, semi-solid or solidifying implants, which are implanted or injected in body tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
- A61L2300/406—Antibiotics
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Molecular Biology (AREA)
- Dermatology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Neurosurgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Oncology (AREA)
- Communicable Diseases (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
- Materials For Medical Uses (AREA)
- Saccharide Compounds (AREA)
- Steroid Compounds (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、抗生物質活性化合物ク
リンダマイシンの遅延放出能を有する薬物投与成型物の
製造のためのパルミチン酸クリンダマイシンの使用、お
よび対応する投与成型物、とくに成形インプラントのか
たちのものに関する。The present invention relates to the use of clindamycin palmitate for the production of drug-administered moldings with a delayed release capacity for the antibiotic active compound clindamycin, and the corresponding dosage moldings, in particular moldings. About implants.
【0002】[0002]
【従来の技術】クリンダマイシンはその有用性が一般に
認められている抗生物質である。これはとくに、ブドウ
球菌および連鎖球菌などのグラム陽性菌、さらにまたグ
ラム陰性嫌気性菌に対しても効果を示す。したがってこ
の抗生物質は、広範囲の疾患の治療のために、例えば消
化管、皮膚および軟組織感染におけるコントロール、さ
らにまた骨髄炎および婦人科感染において用いられる。
さらに、クリンダマイシンは細菌性心内膜炎の予防およ
び治療に有効に用いられてきた。BACKGROUND OF THE INVENTION Clindamycin is an antibiotic generally accepted for its usefulness. It is particularly effective against gram-positive bacteria such as staphylococci and streptococci, and also against gram-negative anaerobes. This antibiotic is therefore used for the treatment of a wide range of diseases, for example in the control of digestive tract, skin and soft tissue infections, as well as in osteomyelitis and gynecological infections.
Furthermore, clindamycin has been used effectively in the prevention and treatment of bacterial endocarditis.
【0003】[0003]
【発明が解決しようとする課題】上記への適用におい
て、この抗生物質は、例えばクリンダマイシンHCl、
クリンダマイシン燐酸エステルなどの生理学的に容認し
得る塩のかたちで、または代わりに遊離のクリンダマイ
シン塩基のかたちで用いられる。In the above application, this antibiotic is, for example, clindamycin HCl,
It is used in the form of physiologically acceptable salts such as clindamycin phosphate, or alternatively in the form of the free clindamycin base.
【0004】クリンダマイシンはまた、パルミチン酸エ
ステルのかたちでも知られている。パルミチン酸クリン
ダマイシン自体は微生物学的に不活性である。しかし、
これは小腸の酵素によって容易に加水分解されて、活性
クリンダマイシン塩基がこの型から遊離される。活性化
合物の血漿半減期はこの場合約2時間である。この性質
の結果、パルミチン酸クリンダマイシンは水性溶媒中で
速やかに溶解するHCl塩のかたちで、活性化合物が経
口投与される場合の治療成型物において速効かつ短期作
用性抗生物質として有用であることが見出だされた。遊
離のクリンダマイシンパルミチン酸エステル(すなわ
ち、HCl塩のかたちではない)は、水性媒体において
事実上不溶性であることから、今日までは薬剤学的に重
要視されていなかった。Clindamycin is also known in the form of palmitate. Clindamycin palmitate itself is microbiologically inactive. But,
It is readily hydrolyzed by enzymes of the small intestine to release the active clindamycin base from this form. The plasma half-life of the active compound is in this case about 2 hours. As a result of this property, clindamycin palmitate, in the form of an HCl salt that dissolves rapidly in aqueous media, is useful as a fast-acting and short-acting antibiotic in therapeutic formulations when the active compound is administered orally. Was found. Free clindamycin palmitate (ie, not in the form of the HCl salt) has not been pharmacologically emphasized to date because it is virtually insoluble in aqueous media.
【0005】驚いたことに、パルミチン酸クリンダマイ
シンの活性クリンダマイシンへの加水分解は消化管内だ
けではなく、例えば血清や血液などの体液の影響下で体
内の他の部分でも起き得ることが今見出だされた。イン
ビトロ実験によって、血清または全血液中またはマクロ
ファージの影響下で、パルミチン酸クリンダマイシンか
ら活性クリンダマイシン塩基が数日から数週という期間
にわたってほぼ一定の速度で緩やかに放出されることが
見出だされた。これらの知見から、例えば手術創傷にお
いてさらに感染予防および治療のための局所に適用され
る活性化合物クリンダマイシンの遅延放出能を有するデ
ポー抗生物質としてのパルミチン酸クリンダマイシン自
体の基本的適性が注目されることになる。Surprisingly, the hydrolysis of clindamycin palmitate to active clindamycin can occur not only in the gastrointestinal tract but also in other parts of the body under the influence of body fluids such as serum and blood. It was found now. In vitro experiments have found that active clindamycin base is slowly released from clindamycin palmitate at a nearly constant rate over days to weeks in serum or whole blood or under the influence of macrophages. Was issued. These findings highlight the basic suitability of clindamycin palmitate itself as a depot antibiotic with a delayed release ability of the active compound clindamycin, which is applied topically for the prevention and treatment of infections in surgical wounds, for example. Will be done.
【0006】パルミチン酸クリンダマイシンはとくに、
抗生物質活性化合物クリンダマイシンの遅延放出能を有
する薬物投与成型物の製造に適している。Clindamycin palmitate, in particular,
It is suitable for the production of drug-administered moldings having a delayed release ability of the antibiotic compound clindamycin.
【0007】[0007]
【課題を解決するための手段】したがって、本発明は、
抗生物質活性化合物クリンダマイシンの遅延放出を可能
とする薬物投与成型物の製造のためのパルミチン酸クリ
ンダマイシンの使用に関する。SUMMARY OF THE INVENTION Therefore, the present invention provides
It relates to the use of clindamycin palmitate for the manufacture of a drug dosage form which allows a delayed release of the antibiotic active compound clindamycin.
【0008】さらに本発明は、抗生物質活性化合物クリ
ンダマイシンの遅延放出能を有する薬物投与成型物に関
し、これらはパルミチン酸クリンダマイシンを含む。The invention further relates to drug-administered moldings having a delayed release capacity of the antibiotic compound clindamycin, which comprises clindamycin palmitate.
【0009】本発明はとくに、成形インプラントのかた
ちのこの型の薬物投与成型物に関する。The invention particularly relates to this type of drug-administered moldings in the form of molded implants.
【0010】活性化合物の遅延放出能を有する投与成型
物の製造のためのデポー抗生物質としてのパルミチン酸
クリンダマイシンの本発明による適性は、一方では水性
または生理的媒体中でのその低溶解性の結果であり、他
方では体液中の代謝プロセスによるこれまでアクセス性
について未発見であったことに基く結果であり、活性ク
リンダマイシン塩基はその体液を介して放出され、その
抗生物質作用を発揮し得る。例えばラット血液中でのイ
ンビトロ実験の結果は、パルミチン酸クリンダマイシン
は、4時間のインキュベーションの後で70%、24時
間のインキュベーションの後で100%が加水分解され
ることを示している。ヒト血清およびウマ血清において
は、この時間の後、35%のエステルが活性クリンダマ
イシン塩基に切断される。パルミチン酸クリンダマイシ
ンを含浸させた非織PTFE片を大腿筋にインプラント
したラットを用いたインビトロ実験によって、一定なな
いしは僅かに増加するクリンダマイシン塩基の尿中への
排出が14日間にわたって示された。しかし、パルミチ
ン酸クリンダマイシンは見出だされなかった。さらに、
クリンダマイシン塩基は、インプラント周辺の筋肉組織
で検出することができた。The suitability according to the invention of clindamycin palmitate as a depot antibiotic for the production of dosage forms with delayed release of active compounds is, on the one hand, its low solubility in aqueous or physiological media. On the other hand, the result is based on the fact that the accessibility to metabolic processes in body fluids has not been discovered so far. Active clindamycin base is released through the body fluids and exerts its antibiotic action. You can For example, the results of in vitro experiments in rat blood show that clindamycin palmitate is hydrolyzed 70% after 4 hours of incubation and 100% after 24 hours of incubation. In human serum and horse serum, after this time 35% of the ester is cleaved to the active clindamycin base. In vitro experiments in rats with non-woven PTFE pieces impregnated with clindamycin palmitate implanted in the thigh muscle showed a constant or slightly increased urinary excretion of clindamycin base over 14 days. It was However, clindamycin palmitate was not found. further,
Clindamycin base could be detected in the muscle tissue around the implant.
【0011】したがって、本発明によると、パルミチン
酸クリンダマイシンは活性化合物クリンダマイシンの遅
延放出能を有する薬物投与成型物において有利に用い得
る。この型の投与成型物は、好ましくは 成形インプラ
ントのかたちで生産される。これらの成形インプラント
は主に、事故または疾患によって起きた骨欠陥の治療ま
たは再構成における骨置換において使用すことができ
る。さらに、対応する成形インプラントはまた、例えば
人工心臓弁、心臓弁縫合環、人工血管または他の外科的
縫合材料などの他の器官部分の置換のために使用するこ
とができる。しかし、成形インプラントはまた、感染の
コントロールまたは予防においては活性化合物の局所放
出のためのデポーインプラントとしてのみ使用できる。Therefore, according to the present invention, clindamycin palmitate can be advantageously used in drug administration moldings having a delayed release capacity of the active compound clindamycin. Dosage moldings of this type are preferably produced in the form of shaped implants. These shaped implants can be used primarily in bone replacement in the treatment or reconstruction of bone defects caused by accidents or diseases. Moreover, the corresponding shaped implants can also be used for the replacement of other organ parts such as artificial heart valves, heart valve suture rings, artificial blood vessels or other surgical suture materials. However, shaped implants can also only be used as depot implants for the local release of active compounds in the control or prevention of infections.
【0012】適宜、この型の成形インプラントは、5〜
250mg/cm3のパルミチン酸クリンダマイシンを
含む。この濃度範囲において、通常の適用のための活性
量のクリンダマイシンの放出の充分期間持続されること
が保証される。Optionally, this type of molded implant comprises between 5 and
It contains 250 mg / cm 3 of clindamycin palmitate. In this concentration range, it is guaranteed that the release of the active amount of clindamycin for normal application is sustained for a sufficient period of time.
【0013】パルミチン酸クリンダマイシンと一つまた
はそれ以上のさらなる薬物活性化合物、とくに同様に抗
生物質作用を有する化合物との配合は有利である。この
場合、作用範囲の拡大および/または異なる抗生物質の
時間的または量的に異なる放出速度の組み合わせが可能
である。The combination of clindamycin palmitate with one or more further pharmacologically active compounds, in particular compounds which likewise have an antibiotic effect, is advantageous. In this case, it is possible to extend the range of action and / or to combine different release rates of different antibiotics in time or quantity.
【0014】パルミチン酸クリンダマイシンと配合され
得るこの型の他の抗生物質の例としては、硫酸ゲンタマ
イシン、とくにゲンタマイシンの3−p−メトキシベン
ジリデン−6−ヒドロキシ−4′−メトキシフラバノン
−6−燐酸との塩があげられる。後者のゲンタマイシン
塩は難溶性で、したがって、遅延放出能を有するゲンタ
マイシンのデポー成型物を提供する。Examples of other antibiotics of this type which can be combined with clindamycin palmitate include gentamicin sulfate, especially gentamicin 3-p-methoxybenzylidene-6-hydroxy-4'-methoxyflavanone-6-phosphate. And salt. The latter gentamicin salt is poorly soluble, thus providing a depot molding of gentamicin with delayed release capacity.
【0015】遅延放出能を有する薬物投与成型物の製造
のためのパルミチン酸クリンダマイシンの本発明による
使用は、適宜、適当な担体材料に含浸させることによっ
て行うことができる。担体材料は成形インプラントのか
たちで存在するかまたはさらにパルミチン酸クリンダマ
イシンとともに加工して、その空いた外側および適宜内
側表面および/またはマトリックス材料自体を活性化合
物によってできるだけ均一に付加被覆されるようにす
る。この含浸は、インプラント成形物に容易に浸潤また
は浸透するパルミチン酸クリンダマイシンの液体調製物
を用いて適宜行われる。そのような液体調製物は、活性
化合物の懸濁液でもよく、好ましくは溶液である。The use according to the invention of clindamycin palmitate for the production of drug-administered moldings with delayed release capacity can be carried out by impregnating a suitable carrier material, if appropriate. The carrier material is present in the form of a shaped implant or is further processed with clindamycin palmitate so that its free outer and optionally inner surface and / or the matrix material itself is additionally coated with the active compound as uniformly as possible. To do. This impregnation is conveniently carried out with a liquid preparation of clindamycin palmitate which readily penetrates or penetrates the implant molding. Such liquid preparations may be suspensions of the active compounds, preferably solutions.
【0016】7〜9容量のテトラヒドロフランおよび3
〜1容量の水の混合物がパルミチン酸クリンダマイシン
のための溶媒としてとくに優れていることが明らかにな
った。この型のテトラヒドロフラン/水混合物におい
て、クリンダマイシンは約33重量%まで溶解すること
ができる。この型の溶媒混合物はまた、パルミチン酸ク
リンダマイシンが上記のデポー成型物のゲンタマイシン
と配合されて用いられる場合にとくに有利である。ドイ
ツ国特許出願P 43 14 871によると、この型の
混合物は、他の溶媒では難溶のこのゲンタマイシンにと
くに優れている。パルミチン酸クリンダマイシンのため
の適当な担体材料および使用可能な他の薬物活性化合物
は、活性化合物溶液を容易に吸収し得る本来多孔性の材
料である。生物活性でとくに生物吸収性材料が好ましく
は成形インプラントのかたちで存在するかまたは成形イ
ンプラントに加工できるようであることが好ましい。成
形インプラントのための代表的な多孔性生物材料は燐酸
カルシウム、とくに燐酸カルシウムセラミックである。
一般に、これらは合成または天然物由来のヒドロキシア
パタイトからなる。有機部分を除去してミネラル相を焼
結してセラミックにした天然骨から得られる骨セラミッ
クが好ましい。海綿セラミックは、天然の高多孔性を有
することから活性化合物の含浸にとくに適している。同
様に用い得る燐酸カルシウム材料としては、他に燐酸三
カルシウムおよび燐酸四カルシウムがある。7-9 volumes of tetrahydrofuran and 3
It has been found that a mixture of ˜1 volume of water is particularly good as a solvent for clindamycin palmitate. In this type of tetrahydrofuran / water mixture, clindamycin can be dissolved up to about 33% by weight. This type of solvent mixture is also particularly advantageous when clindamycin palmitate is used in combination with the depot molding gentamicin described above. According to German patent application P 43 14 871, mixtures of this type are particularly good for this gentamicin, which is poorly soluble in other solvents. Suitable carrier materials for clindamycin palmitate and other pharmaceutically active compounds which can be used are naturally porous materials which can readily absorb active compound solutions. It is preferred that the bioactive and especially bioresorbable material is preferably present in the form of a shaped implant or is capable of being processed into a shaped implant. Typical porous biomaterials for shaped implants are calcium phosphates, especially calcium phosphate ceramics.
Generally, they consist of hydroxyapatite of synthetic or natural origin. Bone-ceramics obtained from natural bone, which is obtained by removing the organic part and sintering the mineral phase into ceramics, are preferred. Sponge ceramics are particularly suitable for impregnating active compounds due to their high natural porosity. Other calcium phosphate materials that may also be used include tricalcium phosphate and tetracalcium phosphate.
【0017】ポリテトラフルオロエチレン(「テフロ
ン」)などの生物不活性ポリマー材料またはコラーゲ
ン、ゼラチン、キチン、キトサン、ポリラクチドまたは
ポリグリコリドなどの生物ポリマーの多孔性成型インプ
ラントも同様に、本発明の方法によってパルミチン酸ク
リンダマイシンを含浸させることができる。これらの材
料は、海綿状、非織または織構造を有する吸収性構造物
のかたちでまたはゲルまたはワックス状材料として存在
することが好ましい。生物セラミックおよび生物ポリマ
ーで造られた多孔性組成材料もまた同様に、活性化合物
担体として適している。Bioinert polymeric materials such as polytetrafluoroethylene ("Teflon") or porous molded implants of biopolymers such as collagen, gelatin, chitin, chitosan, polylactide or polyglycolide are likewise according to the method of the invention. It can be impregnated with clindamycin palmitate. These materials are preferably present in the form of absorbent structures having a spongy, non-woven or woven structure or as gel or wax-like materials. Porous composition materials made of bioceramics and biopolymers are likewise suitable as active compound carriers.
【0018】多孔性活性化合物担体へのパルミチン酸ク
リンダマイシンの付加は担体を活性化合物溶液を用いて
の処理、すなわち完全に担体を浸漬するかまたは液滴の
かたちで加えることによって吸収容量を完全に溶液で満
たすことによって適宜行われる。次いで担体を、好まし
くは温風中で乾燥させる。溶媒混合物の主成分であるテ
トラヒドロフランが迅速に蒸発するために、乾燥は比較
的速やかに進行する。この方法によって、成形物の内側
および外側表面に活性化合物の高度に均一な被覆が形成
される。場合によっては必要な滅菌を行って滅菌包装を
行って後、活性化合物を付加された成形インプラントは
使用可能状態となる。Addition of clindamycin palmitate to the porous active compound carrier results in complete absorption capacity by treatment of the carrier with the active compound solution, ie complete immersion of the carrier or addition in the form of droplets. It is appropriately performed by filling the solution with a solution. The carrier is then dried, preferably in warm air. Drying proceeds relatively quickly due to the rapid evaporation of tetrahydrofuran, the main component of the solvent mixture. By this method a highly uniform coating of the active compound is formed on the inside and outside surfaces of the moldings. After any necessary sterilization and sterile packaging, the active compound-loaded shaped implants are ready for use.
【0019】パルミチン酸クリンダマイシン溶液を用い
る同様の処理によって、非多孔性または単に粗表面を有
するインプラントもまた、活性化合物層で被覆すること
ができる。この型の活性化合物の遅延放出能を有する抗
生物質被覆は、金属、セラミックまたはプラスチックか
ら作られる多くの型の内部人工器官にきわめて都合がよ
い。溶液の活性化合物濃度が高いことに加えて、この被
覆はこの場合さらに、これら材料を迅速に湿潤にして均
一被覆を形成するという利点を有する。例えば、腰人工
器官の大腿骨幹の抗生物質被覆および心臓弁縫合環の抗
生物質含浸は便利である。By a similar treatment with a clindamycin palmitate solution, implants with non-porous or simply rough surfaces can also be coated with the active compound layer. Antibiotic coatings with a delayed release capacity of this type of active compound are very convenient for many types of endoprostheses made from metals, ceramics or plastics. In addition to the high concentration of active compound in the solution, this coating also has the advantage here that the materials wet rapidly to form a uniform coating. For example, antibiotic coating of the femoral shaft of the hip prosthesis and antibiotic impregnation of the heart valve suture ring is convenient.
【0020】パルミチン酸クリンダマイシンを含む成形
インプラントを用いるインビトロおよびインビボ実験に
おいて、抗生物質作用活性のクリンダマイシン塩基の長
期にわたる均一な放出が認められ、一方、不活性のパル
ミチン酸クリンダマイシンの放出は全く認められないか
ごく僅かしか認められなかった。In vitro and in vivo experiments with molded implants containing clindamycin palmitate, a long-term, uniform release of the antibiotically active clindamycin base was observed, while the inactive clindamycin palmitate was released. No or very little release was observed.
【0021】[0021]
[実施例1]1gのパルミチン酸クリンダマイシンHC
l(アップジョン、米国)の25ml水溶液から出発し
て、10mlの0.1%NaOH規定液(0.1% n
ormal NaOH solution)の添加によ
ってクリンダマイシンパルミチン酸エステルを沈澱させ
て、濾過して、水で洗浄して乾燥させる。 [実施例2]実施例1によるクリンダマイシンパルミチ
ン酸エステル0.1gを100mlの1.5%液体寒天
溶液に懸濁させる。固化の後、約0.725cm3の成
形物を材料から切断する。[Example 1] 1 g of clindamycin HC palmitate
1 (Upjohn, USA) starting from 25 ml of aqueous solution, 10 ml of 0.1% NaOH normal solution (0.1% n
The clindamycin palmitate ester is precipitated by the addition of normal NaOH solution), filtered, washed with water and dried. Example 2 0.1 g of clindamycin palmitate according to Example 1 is suspended in 100 ml of 1.5% liquid agar solution. After solidification, about 0.725 cm 3 of molding is cut from the material.
【0022】これら成形物を新鮮な活性ヒト血清中で溶
出に付する。溶出液中のクリンダマイシン活性を微生物
学的に決定する。その結果は、約10μg/mlの濃度
で20日間以上の零次放出を示す。 [実施例3]実施例1によるクリンダマイシンパルミチ
ン酸エステルを9容量のTHFと1容量のH20との混
合物に25℃で攪拌しながら溶解して、0.33g/m
lを含む溶液を得る。 [実施例4]天然の海綿から調製した12.5×12.
5×10mmの多孔性ヒドロキシアパタイトセラミック
のブロックに、浸漬によって実施例3による溶液を含浸
させる。溶液で飽和されたセラミックブロックを取り出
して、温風中で2時間乾燥させる。得られる使用可能な
ブロックは、約120mgのパルミチン酸クリンダマイ
シンを含む。 [実施例5]直径0.5cmで厚さ0.2cmの円形非
織テフロンを完全に飽和されるまで実施例3による溶液
に浸漬する。次いで取り出して、温風中で30分間乾燥
させる。得られる使用可能な非織物は25mgのパルミ
チン酸クリンダマイシンを含む。 [実施例6」実施例5による非織テフロンを6匹のラッ
トの大腿筋にインプラントする。動物を代謝ケージで飼
う。集められた尿中の抗生物質の放出を2週間にわたっ
て毎日測定する。These moldings are subjected to elution in fresh active human serum. The clindamycin activity in the eluate is determined microbiologically. The results show zero order release over 20 days at a concentration of about 10 μg / ml. Example 3 Clindamycin palmitate according to Example 1 was dissolved in a mixture of 9 volumes of THF and 1 volume of H 2 O at 25 ° C. with stirring to give 0.33 g / m 3.
A solution containing 1 is obtained. [Example 4] 12.5 x 12 prepared from natural sponge.
A block of 5 × 10 mm porous hydroxyapatite ceramic is impregnated with the solution according to Example 3 by dipping. The solution-saturated ceramic block is removed and dried in warm air for 2 hours. The resulting usable block contains about 120 mg of clindamycin palmitate. Example 5 A circular non-woven Teflon with a diameter of 0.5 cm and a thickness of 0.2 cm is immersed in the solution according to Example 3 until it is completely saturated. Then, it is taken out and dried in warm air for 30 minutes. The resulting usable non-woven fabric contains 25 mg of clindamycin palmitate. Example 6 The non-woven Teflon according to Example 5 is implanted in the thigh muscle of 6 rats. Animals are kept in metabolic cages. The release of antibiotics in the collected urine is measured daily for 2 weeks.
【0023】第1図にその結果を示す。The results are shown in FIG.
【0024】試験期間中、パルミチン酸クリンダマイシ
ンは認められなかったが、抗生物質活性クリンダマイシ
ン含量の16から32μg/mlの僅かな増加が尿中に
認められた。 [実施例7]心臓弁縫合環(Sorin、イタリア)の
切片にまず9容量のTHFと1容量のH2Oの0.33
g/mlのパルミチン酸クリンダマイシンおよび0.1
g/mlのゲンタマイシンの3−p−メトキシベンジリ
デン−6−ヒドロキシ−4′−メトキシフラバノン−6
−燐酸の塩を含む溶液を含浸させて、乾燥させる。次い
で切片を0.03g/mlの硫酸ゲンタマイシンを含む
水性溶液中に浸漬して、再び乾燥させる。このようにし
て、20mgのパルミチン酸クリンダマイシン、14m
gの難溶性ゲンタマイシン塩および4mgの硫酸ゲンタ
マイシンを含む縫合環切片が得られる。No clindamycin palmitate was observed during the test period, but a slight increase in the antibiotic active clindamycin content from 16 to 32 μg / ml was observed in the urine. Example 7 A section of a heart valve suture ring (Sorin, Italy) was first prepared with 9 volumes of THF and 1 volume of H 2 O 0.33.
g / ml clindamycin palmitate and 0.1
g / ml Gentamicin 3-p-methoxybenzylidene-6-hydroxy-4'-methoxyflavanone-6
Impregnating with a solution containing a salt of phosphoric acid and drying. The sections are then immersed in an aqueous solution containing 0.03 g / ml gentamicin sulfate and dried again. In this way, 20 mg of clindamycin palmitate, 14 m
Suture ring sections containing g of sparingly soluble gentamicin salt and 4 mg of gentamicin sulfate are obtained.
【0025】これらの切片を5匹のラットの大腿筋にイ
ンプラントする。動物を代謝ケージで飼う。集められた
尿中の抗生物質の放出を2週間にわたって毎日測定す
る。These sections are implanted in the thigh muscle of 5 rats. Animals are kept in metabolic cages. The release of antibiotics in the collected urine is measured daily for 2 weeks.
【0026】第2図にその結果を示す。The results are shown in FIG.
【0027】試験期間中、パルミチン酸クリンダマイシ
ンは認められなかったが、約14μg/mlの一定濃度
でクリンダマイシンが尿中に検出された。ゲンタマイシ
ンの放出曲線は、最初の24時間以内に290μg/m
lの初期ピーク値を示し、これに続いて38から3.5
μg/mlに低下して遅延放出する。During the test period, clindamycin palmitate was not detected, but clindamycin was detected in the urine at a constant concentration of about 14 μg / ml. The release curve for gentamicin was 290 μg / m 2 within the first 24 hours.
l shows the initial peak value, followed by 38 to 3.5
Delayed release down to μg / ml.
【図1】実施例6の抗生物質放出を示す図。FIG. 1 shows the release of antibiotics in Example 6.
【図2】実施例7の抗生物質放出を示す図。FIG. 2 is a diagram showing the release of antibiotics in Example 7.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 A61K 47/32 C C07H 15/26 (72)発明者 モニカ チムボレック ドイツ連邦共和国 64293 ダルムシュタ ット フランクフルター シュトラーセ 250、 エー.メルク内 (72)発明者 ベルトホルト ニース ドイツ連邦共和国 64293 ダルムシュタ ット フランクフルター シュトラーセ 250、 エー.メルク内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI Technical display location A61K 47/32 C C07H 15/26 (72) Inventor Monica Timboleck 64293 Darmstadt Frank Fruther Strasse 250, A. In Merck (72) Inventor Bertholt Nice Germany 64293 Darmstadt Frankfurter Strasse 250, A. Within Merck
Claims (10)
遅延放出能を有する薬物投与成型物の製造のためのパル
ミチン酸クリンダマイシンの使用。1. Use of clindamycin palmitate for the preparation of a drug-administered molding having a delayed release capacity for the antibiotic active compound clindamycin.
とを特徴とする抗生物質活性化合物クリンダマイシンの
遅延放出能を有する薬物投与成型物。2. A molded product for drug administration having a delayed release ability of clindamycin, which is an antibiotic compound, comprising clindamycin palmitate.
を特徴とする請求項2に記載の薬物投与成型物。3. The drug administration molded article according to claim 2, wherein the molded article is a molded implant.
クリンダマイシンを含んでなることを特徴とする請求項
3に記載の成形インプラント。4. The shaped implant according to claim 3, comprising 5 to 250 mg / cm 3 of clindamycin palmitate.
たはそれ以上のさらなる薬物活性化合物、とくに抗生物
質活性を有する化合物と組み合わせて含むことを特徴と
する請求項3または4に記載の成形インプラント。5. Molded implant according to claim 3 or 4, characterized in that it comprises clindamycin palmitate in combination with one or more further drug-active compounds, in particular compounds with antibiotic activity.
ンタマイシンおよび/またはゲンタマイシンの3−p−
メトキシベンジリデン−6−ヒドロキシ−4′−メトキ
シフラバノン−6−燐酸との塩と組み合わせて含むこと
を特徴とする請求項5に記載の成形インプラント。6. Clindamycin palmitate is converted to gentamicin sulfate and / or 3-p- of gentamicin.
A shaped implant according to claim 5, comprising in combination with a salt with methoxybenzylidene-6-hydroxy-4'-methoxyflavanone-6-phosphoric acid.
せた活性化合物担体からなることを特徴とする請求項3
〜6に記載の成形インプラント。7. An active compound carrier impregnated with clindamycin palmitate, which is characterized in that
The molded implant according to any one of claims 1 to 6.
繊維構造を有する生物不活性または生物吸収性ポリマー
材料からなることを特徴とする請求項7に記載の成形イ
ンプラント。8. Molded implant according to claim 7, characterized in that the active compound carrier consists of a bioinert or bioabsorbable polymeric material with a spongy, non-woven or woven fiber structure.
料、とくに燐酸カルシウムに基づく材料からなることを
特徴とする請求項7に記載の成形インプラント。9. Molded implant according to claim 7, characterized in that the active compound carrier consists of a porous ceramic material, in particular a material based on calcium phosphate.
の遅延放出能を有するインプラントが可能な投与成型物
の製造法であって、パルミチン酸クリンダマイシンおよ
び必要であればさらなる薬物活性化合物を7〜9容量の
テトラヒドロフランおよび3〜1容量の水の混合物に溶
解して、活性化合物担体をこの溶液で処理して、次いで
溶媒を乾燥によって除去することを特徴とする投与成型
物の製造法。10. A process for the preparation of a dosage form capable of implanting delayed release of the antibiotic active compound clindamycin, which comprises adding clindamycin palmitate and, if necessary, a further drug active compound in an amount of 7-9. A process for the preparation of a dosage form, which comprises dissolving in a mixture of a volume of tetrahydrofuran and 3 to 1 volume of water, treating the active compound carrier with this solution and then removing the solvent by drying.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4404018/0 | 1994-02-09 | ||
| DE4404018A DE4404018A1 (en) | 1994-02-09 | 1994-02-09 | Protected release dosage forms containing clindamycin palmitate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07277992A true JPH07277992A (en) | 1995-10-24 |
Family
ID=6509827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7019396A Withdrawn JPH07277992A (en) | 1994-02-09 | 1995-02-07 | Delayed release administration molded material containing palmitic acid clindamycin |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5607685A (en) |
| EP (1) | EP0667161B1 (en) |
| JP (1) | JPH07277992A (en) |
| KR (1) | KR950031055A (en) |
| CN (1) | CN1111509A (en) |
| AT (1) | ATE177639T1 (en) |
| CZ (1) | CZ32695A3 (en) |
| DE (2) | DE4404018A1 (en) |
| ES (1) | ES2130455T3 (en) |
| PL (1) | PL179298B1 (en) |
| TW (1) | TW282405B (en) |
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-
1994
- 1994-02-09 DE DE4404018A patent/DE4404018A1/en not_active Withdrawn
-
1995
- 1995-01-26 DE DE59505344T patent/DE59505344D1/en not_active Expired - Lifetime
- 1995-01-26 TW TW084100701A patent/TW282405B/zh active
- 1995-01-26 EP EP95101011A patent/EP0667161B1/en not_active Expired - Lifetime
- 1995-01-26 AT AT95101011T patent/ATE177639T1/en active
- 1995-01-26 ES ES95101011T patent/ES2130455T3/en not_active Expired - Lifetime
- 1995-01-31 CN CN95101443A patent/CN1111509A/en active Pending
- 1995-02-06 KR KR1019950002043A patent/KR950031055A/en not_active Ceased
- 1995-02-07 JP JP7019396A patent/JPH07277992A/en not_active Withdrawn
- 1995-02-08 US US08/385,428 patent/US5607685A/en not_active Expired - Lifetime
- 1995-02-08 CZ CZ95326A patent/CZ32695A3/en unknown
- 1995-02-08 PL PL95307159A patent/PL179298B1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006111636A (en) * | 1997-12-26 | 2006-04-27 | Astellas Pharma Inc | Sustained release pharmaceutical composition |
| JP2007217413A (en) * | 2006-02-15 | 2007-08-30 | Heraeus Kulzer Gmbh | Implant material |
| JP2014522816A (en) * | 2011-06-22 | 2014-09-08 | ビョーメ バイオサイエンシズ ピーブイティー.リミテッド | Conjugate-based antifungal and antibacterial prodrugs |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE177639T1 (en) | 1999-04-15 |
| CZ32695A3 (en) | 1995-10-18 |
| ES2130455T3 (en) | 1999-07-01 |
| PL307159A1 (en) | 1995-08-21 |
| DE4404018A1 (en) | 1995-08-10 |
| CN1111509A (en) | 1995-11-15 |
| TW282405B (en) | 1996-08-01 |
| EP0667161A1 (en) | 1995-08-16 |
| PL179298B1 (en) | 2000-08-31 |
| EP0667161B1 (en) | 1999-03-17 |
| DE59505344D1 (en) | 1999-04-22 |
| US5607685A (en) | 1997-03-04 |
| KR950031055A (en) | 1995-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20040426 |